For a couture house as revered as <b><a href=" http://www.selfridges.com/GB/en/cat/givenchy/" style="text-decoration: none"><font color="black">Givenchy</a></b>, you might (mistakenly) assume its aesthetic is serious to the point of being stuffy. But Clare Waight Keller is changing all that while still dipping into the founder’s extensive archive. This cotton-jersey T-shirt places the iconic mirrored G logo at the chest, but the update is in jagged rock metal type. You can play up to that vibe by wearing it beneath a leather biker jacket with the skinniest of black jeans.